Nucleon Charge Symmetry Breaking and Parity Violating Electron-Proton Scattering

Details Nucleon Charge Symmetry Breaking and Parity Violating Electron-Proton Scattering Nucleon Charge Symmetry Breaking and Parity Violating Electron-Proton Scattering

1997-11-18

arxiv.org/abs/nucl-th/9711036v1

Phys.Rev.C57:1492-1505,1998

Physics

Nuclear Physics

Nuclear Theory

35 pages, 9 figures

Scientific paper

10.1103/PhysRevC.57.1492

The consequences of the charge symmetry breaking effects of the mass difference between the up and down quarks and electromagnetic effects for searches for strangeness form factors in parity violating electron scattering from the proton are investigated. The formalism necessary to identify and compute the relevant observables is developed by separating the Hamiltonian into charge symmetry conserving and breaking terms. Using a set of SU(6) non-relativistic quark models, the effects of the charge symmetry breaking Hamiltonian are considered for experimentally relevant alues of the momentum transfer and found to be less than about 1 percent. The charge symmetry breaking corrections to the Bjorken sum rule are also studied and shown to vanish in first-order perturbation theory.

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